Cadillac Mass Air Flow (MAF) Sensor Replacement
Are you experiencing poor fuel economy, and your Cadillac’s check engine light stays on? The problem may be a faulty Mass Air Flow sensor on your Cadillac.
This guide provides instructions on changing Cadillac vehicles’ Mass Air Flow (MAF) sensors. Changing the mass airflow sensor on a Cadillac takes less than 30 minutes. Read the codes and verify the MAF sensor is faulty before replacing it.
How to Replace Mass Air Flow (MAF) Sensor on a Cadillac
Symptoms
- Cadillac is hard to start or has trouble turning over.
- The engine stalls soon after starting.
- The engine runs unusually lean or rich when idling.
- Cadillac engine drags or hesitates when idle or under load.
- Cadillac hesitates and jerks during acceleration.
- Cadillac engine hiccups.
- Check Engine Light stays ON
What you will need
- Cadillac MAF Sensor
- Philips Screwdriver
- Torx Socket Set
Procedure
- Park the Cadillac, turn off the ignition, set the parking brakes, and allow the engine to cool down.
- Open the hood. Pull the hood release under the dashboard on the driver’s side.
Locate the mass airflow sensor next to the air filter housing. - Unplug the electrical connector from your Cadillac MAF sensor. Press on the tab to unclip the connector, then pull the connector away from the MAF.
- Remove the two screws that secure the MAF sensor to the air inlet pipe.
- Replace the vehicle MAF Sensor from the vehicle.
- Install the new Cadillac MAF sensor. Tighten the screws so that they are snug.
- Plug the electrical connector until it locks in place.
- Start the vehicle and let it idle.
The check engine light will not reset immediately, which may take up to a week to reset. If you want to erase the check engine light immediately, use an OBD-II scanner to read and clear the codes.
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Check Engine Light Still On
If the check engine light is still on after you replace the mass airflow sensor, you can use the YOUCANIC Full System Scanner to clear the stored codes. This scanner can also read and clear fault codes on every control module of your Cadillac.
This guide will help Cadillac ATS, CTS, XTS, CT6, XT5, Escalade, SRX, DTS, STS, BLS, and XLR owners learn how to change MAF sensors.
The typical cost to change a Cadillac mass airflow sensor at the dealer or mechanic is between $250 and $500.
Changing the Cadillac MAF sensor yourself typically costs under $100 when purchasing the MAF sensor online; see the link below. The following pictures show that the MAF sensor can easily be changed near the air filter housing.
We hope you find the Cadillac Mass Air Flow (MAF) Sensor Replacement guide helpful. Check these troubleshooting and repair guides for more help on your Cadillac.
